Birnessite-type Manganese Oxide by Redox Precipitation

Effective Strain Engineering of IrO2 Toward Improved Oxygen Evolution Catalysis through a Catalyst‐Support System

“…The bond form leaves plenty of dangling bonds at the surface of birnessite, which may act as anchoring sites for IrO 2 nano‐crystals during hydrothermal reaction, as the interlayer distance is wide enough (≈7 Å) that Ir cations can be adsorbed within the birnessite. As observed in our experiments and reported in the literature, the birnessite can be easily prepared at room temperature naturally under oxidizing atmosphere. Thus, it is promising that birnessite forms at first and acts as a growing bed and support material for IrO 2 in the hydrothermal system (illustrated in Figure a).…”

A manganese dioxide–silver nanostructure-based SERS nanoplatform for ultrasensitive tricyclazole detection in rice samples: effects of semiconductor morphology on charge transfer efficiency and SERS analytical performance

“…In Method 1, MnO 2 was formed due to the addition of a NaOH and H 2 O 2 mixture (Mixture O) into Mn(NO 3 ) 2 solution as mentioned in Section 2. The formation of MnO 2 can be described as below: 20 Mn 2+ + 2OH − → Mn(OH) 2 Mn(OH) 2 + H 2 O 2 → MnO 2 + 2H 2 O…”